Ferroelectric properties and fatiguing effects of modified PbTiO3 ceramics

Carl, K.

doi:10.1080/00150197508240077

Cited by 99 publications

(17 citation statements)

References 13 publications

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“…The remanant polarization (Pr) and the coercive field are ∼0.49 μC/cm 2 , 0.24 μC/cm 2 and 0.4 kV/cm, 0.57 kV/cm for nanocrystalline PTO ceramics sintered at 700° and 1000°C, respectively. The measured Pr is comparable with that of modified PTO ceramics prepared by Carl 16 …”

Section: Resultssupporting

confidence: 72%

Multiferroic Properties of Nanocrystalline PbTiO₃ Ceramics

Wang

Tan

Zhang

2010

Journal of the American Ceramic Society

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Nanocrystalline PbTiO3 (PTO) powders in a perovskite structure have been synthesized by the sol–gel process using lead acetate, glycerin, and titanium (IV) isopropoxide as precursors. PTO ceramics were obtained by sintering the powders at temperatures ranging from 600° to 1000°C. The structure and morphology of the ceramics have been determined by X‐ray diffraction, transmission electron microscopy, and field emission scanning electron microscopy. The PTO powder calcined at 450°C shows weak ferromagnetism at room temperature. The PTO ceramics sintered at various temperatures exhibit coexistence of ferroelectricity and weak ferromagnetism at room temperature. Enhancement in the magnetic moment and ferroelectricity with a reduction in the grain size of PTO ceramics was observed. This result facilitates the possibilities of new perovskite electromagnetic devices at the nanoscale level.

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Section: Resultssupporting

confidence: 72%

Multiferroic Properties of Nanocrystalline PbTiO₃ Ceramics

Wang

Tan

Zhang

2010

Journal of the American Ceramic Society

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“…It is known that more strain energy is created by domain switching in tetragonal ferroelectrics; therefore, microcracking to relieve this strain is more likely in these compositions, in comparison with softer rhombohedral materials. 13,14 Notably, the fatigued PZT-5A RAINBOW showed no evidence of microcracking in Fig. 7.…”

Section: (4) Electromechanical Resonance Propertiesmentioning

confidence: 94%

Ferroelectric Polarization Fatigue in PZT‐Based RAINBOWs and Bulk Ceramics

Dausch¹

1997

Journal of the American Ceramic Society

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The ferroelectric fatigue behavior of high-displacement reduced and internally biased oxide wafer (RAINBOW) actuators was investigated and compared with that of conventional bulk ceramics. Piezoelectric lead zirconate titanates (PZT-5H and PZT-5A) as well as electrostrictive lead lanthanum zirconate titanate (PLZT 9/65/35) materials were studied. Piezoelectric bulk ceramics experienced a 25% decrease in remanent polarization over 10 8 switching cycles, whereas RAINBOW polarization degraded by 33%-53%. Bulk ceramic and RAINBOW electrostrictors both fatigued only 8%. Bulk ceramics fatigued as a result of reorientation of the polar axes away from the electric-field direction. RAINBOW fatigue was believed to have been caused by degradation at the interface between the oxide and chemically reduced layers.

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“…They are ͑1͒ domain pinning/space charges, 12 ͑2͒ electrode attachment, 11 and ͑3͒ mechanical degradation. 13 For example, Carl 14 and Chung et al 15 observed that electrical fatigue caused microcracking in the material. They attributed the formation of these cracks to internal stress developed between grains, thermal-expansion anisotropy, or stress induced by large electric fields.…”

Section: Introductionmentioning

confidence: 97%

Influence of temperature on the electromechanical and fatigue behavior of piezoelectric ceramics

Wang

Fotinich

Carman

1998

Journal of Applied Physics

246

145

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Multiferroic response of nanocrystalline lithium niobate J. Appl. Phys. 111, 07D907 (2012) Non-radiative complete surface acoustic wave bandgap for finite-depth holey phononic crystal in lithium niobate This paper presents research results on the electro-thermomechanical behavior of piezoelectric ceramics for use in actuator applications with an emphasis on ferroelectric fatigue. The material being investigated is a lead zirconate titanate piezoelectric ceramic with the composition PbZr 0.53 Ti 0.47 O 3 ͑PZT-5H͒. Results presented in this paper include an augmented constitutive model that accounts for the temperature-dependent piezoelectric properties. Using this model, nonlinear effects measured at one temperature can be extrapolated to other temperatures with good accuracy. Experimental studies into 180°and 90°polarization switching of PZT-5H indicate that the dielectric flux to dipole the material appears to be an adequate criterion for predicting this nonlinear switching behavior. Fatigue studies show that material degradation is strongly influenced by temperature and by the magnitude of the applied electric field. Above a critical temperature, PZT-5H no longer fatigues in the presence of large electric fields due to changes in the electromechanical properties such as the depolarization strain. Using a finite element model incorporating the proposed constitutive relations along with a domain switching criterion, this paper suggests that fatigue degradation is primarily caused by mechanical stresses in the material resulting from spatially variant electric fields causing preferential domain wall motion. The large stress mismatches induce mechanical damage in the form of cracks.

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Ferroelectric properties and fatiguing effects of modified PbTiO3 ceramics

Cited by 99 publications

References 13 publications

Multiferroic Properties of Nanocrystalline PbTiO₃ Ceramics

Multiferroic Properties of Nanocrystalline PbTiO₃ Ceramics

Ferroelectric Polarization Fatigue in PZT‐Based RAINBOWs and Bulk Ceramics

Influence of temperature on the electromechanical and fatigue behavior of piezoelectric ceramics

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Ferroelectric properties and fatiguing effects of modified PbTiO3 ceramics

Cited by 99 publications

References 13 publications

Multiferroic Properties of Nanocrystalline PbTiO3 Ceramics

Multiferroic Properties of Nanocrystalline PbTiO3 Ceramics

Ferroelectric Polarization Fatigue in PZT‐Based RAINBOWs and Bulk Ceramics

Influence of temperature on the electromechanical and fatigue behavior of piezoelectric ceramics

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Multiferroic Properties of Nanocrystalline PbTiO₃ Ceramics

Multiferroic Properties of Nanocrystalline PbTiO₃ Ceramics